The B-21 Raider, the U.S. Air Force's dual-capable, penetrating strike bomber with stealth functions has moved a step closer to its first flight after the first aircraft moved out of the production facility.
The futuristic fighter aircraft is called dual-capable since it is designed to deliver conv

On June 14,2013 SpaceX's Grasshopper flew 325 m (1066 feet)--higher than Manhattan's Chrysler Building--before smoothly landing back on the pad. For the first time in this test, Grasshopper made use of its full navigation sensor suite with the F9-R closed loop control flight algorithms to accomplish...